Rotary engine.



M. A. ROHMER.

ROTARY ENGINE.

APPLICATION mm) FEB. n. 1917.

1,2U,63; Patented Dec. 18, 191?.

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M. A. ROHMERa ROTARY ENGINE. APPLICATION min FEB. 11. 1917.

Patented Des. 18, 1917.

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. a".v v y B I \I ll 7 V I v I i 4 /\ZZ I 5 I i I 1 I l 4 4 Z g 4. j I :1 w L I j L I a citizen of the United States, residing at;

MAR-rm agents, or B owser; transit;

scram: meme;

all toll/0m itinay concern; Beit known that; I, M RTIN A.- R HMER,

Florence, in the county of Douglas and State of Nebraska, have; invented certain new and useful Improvements in Rotary Engines; and'I do hereby declare the fol lowing to be a full, clear, and exactdescription ofthe invention, such as will enable others skilled in the art to which it apper. tains to make and use the same; i a,

The invention relatesto improvements-in rotary engines; a V l The object of the present invention is to improve the constructionof rotary enginesdesigned fortheuseof steam or. other fluid pressure and-equipped with means for inof the-rotary piston without;the-friction; which; would ordinarily result from such a troducing, the fluid pressure into-theengine central-1y of the rotaryvpiston and of discharging the said pressure at; the per phery discharge. I a 7 With these and'oth'e'r objects in view, the invention consists in the construction and novel combination of parts hereinafter fully described, illustrated in theaccompanying drawings and pointed out inthe claims hereto appended; it being understood that various changes in; the form, proportion,

size and minor detailsof construction,-,within thescope of the claims, may be resorted towithout departing from the spirit or sac- In the accompanylng drawings, in which is illustrated the preferrediembodiment of the invention, the notary engine comprises in its construction a rotary piston. 1 mounted Within a sectional casing 2 and provided vat opposite sides with solid and hollow shaft sections or shafts 3 and 4, which are journaled in suitable bearings of standards 5.

The rotary piston is provided with a cen- Application filed February 17, 1917: Serial nd.-149,239..7

fluid pressure from the-,rotarypiston. shafts'may be provided at their inner, ends, with suitable heads 9 secured in recesses '10-. .ofithe rotary pistonby screws or othersuitable fastening devices, but the mounting of of the advantages of the in-- Specification of Letters Patent tral inlet chamber 6 and it} hasga spiral or convolute passage orchannel; 7 extending from the, central inlet chamber 6,-to the periphery of the rotary piston, thev Outer endSbeing slightly enlarged, as' isshown,

to facilitate the discharge of steam or other The the rotary piston maybe'varied, aswillbe readily understood;-

with peripherial' flangesfll, has. suitable packing 12, which may be in 3 the form of, one or more packing rings, and the said:

sections of the outer casing are provided with central tubular extensions 13 having annular attaching flanges 14:, which area-sea cured by bolts or other suitable fastening devices to corresponding fiangesv15', of the standards 2 The tubular shaft extends be-J yondthe? bearing of the adjacentstandardand is arranged Within a coupling section ltiv to-wh ch a steam? feed pipe 17 is connected, and one or more packing r ngscl8' may be employed for providinga1steam;tight joint.

or connection-v between the hollow rotary- The casing, WlllClliiSi: composed of two c rcular-sections provided;

E shaft and the tubular "member or coupling 1;

section 16. The; tubular; member forq'cou -a'u.

pling section 16 is providedzat the standa rd with an annular flange 19, which is-bjolted' a flange 20 of the} or otherwise secured to standard.

'The, casing,"which is of greaterdiameten than the rotarypiston,is provided at'woppo-l-l site 'si'deswith packing: ringsQl, which may be of any desired numberoand" which-are? interposed between the-rotary; piston and thecasing to {form steam-tight joints or connections at the; outer-portion of the said.

pistoin Within thespace beyond the rotary o. piston are mou'nted a, pluralitylof separate arcuate; outlets 22 consisting substantiall y;-

of rectangular frames composed of straight radially arranged SldGSi'EL'DClFCUIVGd ends 23,;

whichare provided with openings at for a the reception of screws25 or othersuitable fastening devices for securing the outlets in proper position at the peripheral portion of the casingin spaced relation with the rim of the same to form an outer circumferential space 26 to permit the steam or other fluid pressure to pass to exhaust ports 27, which may be of any desired number to Secure the necessary rapidity of exhaust. The number of the outlets may be varied and they may be'arranged at the desiredpoint around the periphery of the outer casing and they can, by the fastening means employed, be set as close together or as far apart as desired,

suitable perforations being provided for the ranged sides of the outlets and isdirected by the same into the annular CllCUHlfQl811- tial space'between the outlets and the rim of the-casing so that the steam will not be deflected back against the rotary piston and interfere with the free-rotary movement of the same. The friction incident to such back action or contact of the steam with the ro-- tary piston is therebyeliminated. The sectional formation of the outer casing affords ready access to the interior of the engine and will enable the parts to be readily assembled and separated for renewing the packing or any other purpose.

vThat-is claimed is:

1; A rotary engine of the class described including a casing,- a rotary piston having a a central inletchamber and provided with a spiral passage extending fromthe inlet chamber to the peripheryof the rotary piston, said rotary piston being arranged within the casing and the latter being extended beyond the periphery of the rotary piston and having an exhaust port, and a pluralityof arcuate outlets consisting of radially arranged side and curved connecting ends'and extending across the casing beyond the rotary piston and arranged in spaced relation with the rim of the casing to provide an outer"annular space, theradially arranged sides of the-outlets being adapted to deflect the steam or other fluid pressure into the circumferential space and relieve the rotary piston of friction. I

2. A rotary engine of the class described including a casing, a rotary piston having a central inlet chamber and provided with a spiral passage extending from the inlet chamber to the periphery of the rotary pis- Gopies of this patent may be obtained for ton, said rotary piston being arranged within the casing and the latter being extended 7 beyond the periphery of the rotary piston and having an exhaust port, a plurality of arcuate outlets consisting of radially arranged side and curved connecting ends and extei'idingacross the casing beyond the rotary piston and arranged in spaced relation with the rim of the casing to provide an outer annular space, the radially arranged:

sides of the outlets being adapted to deflect the steam or other fluid pressure into the circumferential space and relieve the rotary piston of friction, and fastening de vice piercing the casing atopposite sides thereof and extending into openings in the arcuate connecting ends of the outlets and detachably secured to the same within the casing. a

3. A rotary engine of the class described" including spaced standards provided with bearings and having annular flanges thereat;

a stationary casing composed of circular sections secured together at their peripheries and provided with central tubular exten-'- sions having'annular flanges secured'tothe flanges of thestandards, a rotary piston arranged within the casing and having a cen-- tral inlet chamber and aspiral or convolute passage or channel extending from the'-central chamber to theperiphery of the piston,

said piston being also provided at opposite sides with recesses, solid and hollow shafts having heads secured inthe saidrecesses,"

said shafts being mounted inthe bearings and a hollowshaft being extended beyond" the bearing at the outer side thereof and communicating'at its inner end with the central-chamber, fastening means for securing the flanges of the casing to the flanges of the standards, a coupling member se-- cured to one of the standards and receiving the projecting end of the hollow shaft and" provided with packing, and separate outlets mounted within the casing at the outer por-' tion thereof and presenting deflecting'faces to the channel of a rotary piston,

In testimony whereof I afiix my signature in presence of two Witnesses. V

' MARTIN a. vRoHM WVitnesses:

H. T. RIsBIN, E. BRENEMA'N;

five cents each, by addressing the Commissioner,oflatents, Washington, D. 0. l a x 

